Heh, I remember those keas when I was in NZ. You totally need to keep an eye on ALL the things. I got up from a picnic table to go check on something and when I came back the damn kea had its beak in my plastic cup (filled with wine) and was trying to make off with it. It ended up spilling my wine all over, woe.

Wekas (a flightless bird about the size of a chicken) also like to steal shiny things, and towels, and clothes, and stuff.

The moral of the story: NEW ZEALAND BIRDS STEAL YOUR SHIT!